Measurement of the production cross section for
Z
+
b
jets in proton-proton collisions at
√
s
=
13
TeV
Z
+
b
jets in proton-proton collisions at
√
s
=
13
TeV
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
The measurement of the cross section for the production of a
Z
boson, decaying to dielectrons or dimuons, in association with at least one bottom quark jet is performed with proton-proton collision data at
√
s
=
13
TeV
. The data sample corresponds to an integrated luminosity of
137
fb
−
1
, collected by the CMS experiment at the LHC during 2016–2018. The integrated cross sections for
Z
+
≥
1
b
jet
and
Z
+
≥
2
b
jets
are reported for the electron, muon, and combined channels. The fiducial cross sections in the combined channel are
6.52
±
0.04
(
stat
)
±
0.40
(
syst
)
±
0.14
(
theo
)
pb
for
Z
+
≥
1
b
jet
and
0.65
±
0.03
(
stat
)
±
0.07
(
syst
)
±
0.02
(
theo
)
pb
for
Z
+
≥
2
b
jets
. The differential cross section distributions are measured as functions of various kinematic observables that are useful for precision tests of perturbative quantum chromodynamics predictions. The ratios of integrated and differential cross sections for
Z
+
≥
2
b
jets
and
Z
+
≥
1
b
jet
processes are also determined. The value of the integrated cross section ratio measured in the combined channel is
0.100
±
0.005
(
stat
)
±
0.007
(
syst
)
±
0.003
(
theo
)
. All measurements are compared with predictions from various event generators.
Z
boson, decaying to dielectrons or dimuons, in association with at least one bottom quark jet is performed with proton-proton collision data at
√
s
=
13
TeV
. The data sample corresponds to an integrated luminosity of
137
fb
−
1
, collected by the CMS experiment at the LHC during 2016–2018. The integrated cross sections for
Z
+
≥
1
b
jet
and
Z
+
≥
2
b
jets
are reported for the electron, muon, and combined channels. The fiducial cross sections in the combined channel are
6.52
±
0.04
(
stat
)
±
0.40
(
syst
)
±
0.14
(
theo
)
pb
for
Z
+
≥
1
b
jet
and
0.65
±
0.03
(
stat
)
±
0.07
(
syst
)
±
0.02
(
theo
)
pb
for
Z
+
≥
2
b
jets
. The differential cross section distributions are measured as functions of various kinematic observables that are useful for precision tests of perturbative quantum chromodynamics predictions. The ratios of integrated and differential cross sections for
Z
+
≥
2
b
jets
and
Z
+
≥
1
b
jet
processes are also determined. The value of the integrated cross section ratio measured in the combined channel is
0.100
±
0.005
(
stat
)
±
0.007
(
syst
)
±
0.003
(
theo
)
. All measurements are compared with predictions from various event generators.
Date Issued
2022-05-31
Date Acceptance
2022-04-19
Citation
Physical Review D, 2022, 105 (9), pp.1-34
ISSN
2470-0010
Publisher
American Physical Society (APS)
Start Page
1
End Page
34
Journal / Book Title
Physical Review D
Volume
105
Issue
9
Copyright Statement
© 2022 CERN, for the CMS Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
License URL
Identifier
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.105.092014
Publication Status
Published
Article Number
092014
Date Publish Online
2022-05-31